Ninja® Master Prep®

Model #: QB900

Rule the Kitchen with this revolutionary food and drink maker. Transform ice cubes into perfect, creamy frozen drinks and desserts in the blink of an eye. Make perfectly chopped salads, salsas and dips quickly without fear of uneven chunks or worse… turning the whole thing to mush.

RATINGS QB900 (11 Reviews)


Provides unique processing power for uniform cutting and ice crushing action.

The large 48oz. pitcher is perfect for making several drinks at a time, featuring an easy flip pour spout and no-slip bottom.

Following recipes, and prepping food become effortless with the 2 cup processor: Minces, Dices, Chops, Blends and Purees. No soggy results!

The interchangeable motor head allows you to prep appetizers in the processor, and quickly switch to activate the party pitcher for drinks, entertaining at its best!

Ergonomic operation with one touch pulsing creates an easy to use and safe product.

Dishwasher safe parts.

  • Patented Ninja® Technology
  • Dishwasher Safe Parts
  • 400W motor
  • 2010 Housewares Design Award Winner
  • BPA-Free

Parts & Accessories

Ninja® Breakthrough Blending! Recipe Book



Ninja® Master Prep® Bowl Splash Guard



Ninja® Master Prep® Bowl Blades (post 4809)



Ninja® Master Prep® Bowl Blades (post 4210)



Ninja® Master Prep® Bowl



Ninja® Master Prep® Power Head (Post 4809 Production)



Ninja® Master Prep® Power Head (Post 4210 Production)



Ninja® Master Prep® Bowl Lid



Ninja® Master Prep® Storage Lid for Pitchers



Ninja® Master Prep® Pitcher Splash Guard



Ninja® Master Prep® Pitcher Blades



Ninja® Master Prep® Gasket Kit (2)



Ninja® Master Prep® Non-Slip Ring Kit



Ninja® Master Prep® Anti-Spill Ring Kit (2)



Ninja® Master Prep® 48 oz. Pitcher




How do I care for my Ninja® Master Prep®?

Will the Ninja® Master Prep® blend vegetables, and fruits into drinkable liquids?

Can I make hot soup in my blender?

Is it OK to put the Ninja® Master Prep® in the dishwasher?

How much do the containers hold?

Can I use the blades for the chopper in the pitcher, or the pitcher blades in the chopper?

How many Watts is the Ninja®?

What is the blade speed?

For how long can I use the Ninja®?

What do I do if the motor doesn't start or the blades don't rotate?

Why is my food unevenly chopped?

What do I do if my food is chopped too finely, or is too watery?

Why does food sometimes collect on the Splash Guard/Safety Cover, or on the sides of the Master Prep® Pitcher, or Bowl?

What type of warranty does my Ninja® have?

Can I get additional parts (blades, containers, cups, etc.) for my Ninja® Master Prep®?

Get Healthy with Ninja


Traditional Guacamole

Tuscan Bruschetta

Babaganoosh (Grilled Eggplant Dip)

Banana Whip

Broiled Salmon with Herb Glaze

Caramel Banana Smoothie

Country Chicken Salad

Orange Cream

Creole Shrimp Po’ Boy

Curried Chicken Salad

Fresh Fruit Batidos

Fresh Tomato Salsa

Frozen Hot Chocolate

Frozen Mojito

Frozen Peanut Butter Cup

Frozen Pomegranate Margarita

Frozen Toffee Delight

Key Lime Pie

Mocha Frozen Fusion Lite

Ninja Snow Cone

Orange Mojo Marinade

Skirt Steak with Chimichurri Sauce

Smokey Black Bean Soup

Strawberry Banana Smoothie

Tzatziki (Cucumber Yogurt Dip)

Watermelon Slush

White Gazpacho Soup

Pumpkin Spice Smoothie

Veggie Chowder

Quinoa and Cheese Stuffed Portobello Mushrooms

Stir-Fried Ginger Pork and Garlic Noodles

Cinnamon Almond Milk

Turkey and Stuffing Mini Frittatas

Papa’s Baba Ganoush

Creamy Tomato Soup

The Mr. Grinch Smoothie

Holiday Cashew Spread

Cranberry and Cheese Pinwheels

Chunky Kale Guacamole

Greek Chopped Salad with Feta Cheese

Chicken Chile Verde

Glowing Green Smoothie

Kale and Brussels Sprouts Salad with Lemon-Mustard Vinaigrette

Chicken, Artichoke and Pesto Quesadillas

The Hydrating Hero

Bold Mexican Black Bean Soup

Frosted Orange Dream

Bohemian Chicken and Smoked Paprika Soup

Greek Marinated Chicken

Shredded Brussels Sprouts

Creamy Broccoli Pesto Pasta with Grilled Chicken


Biggest Loser Cookbook chef Devin Alexander combines two favorite Italian home-cooked dishes into one!

Spring Pea Puree

Banana Berry Breeze

Spinach, Cranberry and Avocado Salad with Poppy Seed Vinaigrette

Peter Cotton Tail Carrot Muffins

Strawberry and Apricot Swirl

Broccoli and Cheddar Stuffed Bell Peppers

Light and Healthy Artichoke Dip

Mixed Spring Salad with Sweet and Spicy Vinaigrette

Watermelon Kiwi Splash

Vinegar Coleslaw

Black Bean Hummus

Cold Beet Soup

Blueberry Rita

Creamy Cantaloupe Smoothie

Nutty Chocolate Fig Bites

Sweet and Spicy Summer Salsa

Cold and Refreshing Cucumber Soup

Nectarine Dreamsicles

Chocolate Banana Strawberry Chill

Cucumber Dip

Zucchini, Tomato and Olive Bruschetta

Cantaloupe Coolers

Grape Escape

The Big Squeeze

Almond Peanut Butter Chip Muffins

Artichoke and Bean Soup

Cauliflower "Rice"

Cider Sangria

Carrot Cake Smoothie

Chocolate Hazelnut Pumpkin Dip

Creamy Broccoli Soup

Corn and Red Pepper Chowder

The Spooky Spirit


from Orlando, FL
Dec. 29, 2013


I love my ninja... Yet I am not happy with the way the blade is made into two parts and wears out and the second blade quits turning... They should make the two blades permanently connected.
Jul. 10, 2013

It is the perfect size for a small kitchen

I love this machine. It is the perfect size for a small kitchen - not taking up much space at all. But in the 6 weeks that I have been using it (twice daily) , I have broken (spiral fracture)the long shaft for the tall blender, and burned out the motor. Looking for parts for it - I discover that individual parts cost as much as a new blender. That sucks.
Michael Seyfried
Jan. 6, 2011

Now I find myself helping in the kitchen.

Bought my wife the Ninja at Sam's Club. Now I find myself helping in the kitchen. I love to play with this thing. It's really fun. I made some great turkey salad with some leftovers using this machine. It was a breeze. And it tasted great. Wonderful smooth texture.
Dec. 29, 2010

I just got this for Christmas and have already used it several t...

I just got this for Christmas and have already used it several time. I've used it to make baby food and also some of my favorite dishes that require lots of chopping, shredding and pureeing. It is so easy to use and works quickly. I'm definitely getting one of these for my parents.
Dec. 27, 2010


I LOVE, LOVE, LOVE my Ninja Prep. I am a client and employee of a weight loss clinic and it has helped me meet and maintain my healthy goals. We have recommended the Ninja to all of our clients. It works awesome on our protien drinks, lo cal cheesecake and decaf coffee shakes. I've used my Ninja so much that I feel like I should replace the blades. Would love to get information about where to purchase new blades, so I can continue using the Ninja in my home.
Dec. 23, 2010

I am so glad I purchased the ninja prep.

I am so glad I purchased the ninja prep. It does exactly what it said it would. I have started my Christmas dinner only took 30 sec to prepare my bell pepper celery and onion didnt even cry from the onion so impressed. Loving it
Rhonda Maza
Dec. 22, 2010

It made snow cones so quickly

I live in Florida so we don't get snow for Christmas. It made snow cones so quickly, I used it to make a big bowl of snow for my son to play in. He built a little snow person and threw snowballs. For Christmas I plan to buy a big bags of ice so we can make snow for our yard.
v. fite
Dec. 12, 2010


OMG! This is the first TV product I have ever received that delivered...not only as was promised...but MORE! I love my ninja. Got it at Kitchen Collections and bought my daughters and sister one within hours of using mine for the first time! It is a truly amazing product. I hope you all try this one. Really. I am throwing my bullet, choppers and cuisineart away! THANK YOU NINJA! Going to chop veggies for a tiny cubed salad..lol.
Wanda Stanley
Dec. 5, 2010

This is the best all around mixer/food processor I have ever use...

This is the best all around mixer/food processor I have ever used. It is fast and easy to use. It will chip ice in a second and grind raw boneless meat in a quick 1,2,3 hit of the on switch. I would recommend this to everyone. My kids are all grown and on their own and I want to get one for each of them. i love this machine.
Nov. 13, 2010

I love my ninja...

I love my ninja....I have a 8 month old lil girl and making fresh baby food for her is faster then opening a jar and I control the ingredients.It's a dream to own if your thinking about getting one then stop thinking and get one today.
Nov. 9, 2010

great very time use it

great very time use it


Click on a star to rate this product:

Your feedback is valued and appreciated. Although your phone number is optional, it is the best way for our customer experience representative to reach you to respond to your feedback or any concerns with our products or policies. It will not be displayed. (optional)

Buy the Ninja® Master Prep® at these retailers:

Get Real with Rachel Beller, MS, RDN

Nutritionist of The Biggest Loser shares Nutri Ninja® recipes and how-to videos

Copyright © 2015 Euro-Pro Operating LLC | 877-646-5288 Mon.-Sat. 7 a.m.-11 p.m. ET | Sun. 9 a.m.-8 p.m. ET

Euro-Pro Operating LLC BBB Business Review